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/** @file
A brief file description
@section license License
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#pragma once
#include "tscore/ink_platform.h"
#include "records/I_RecHttp.h"
#include "P_EventSystem.h"
#include "HttpConfig.h"
#include "HTTP.h"
#include "I_Net.h"
#include <records/I_RecHttp.h>
namespace detail
{
/** Options for @c HttpSessionAccept.
@internal This is done as a separate class for two reasons.
The first is that in current usage many instances are created
with the same options so (for the client) this is easier and
more efficient than passing options directly to the @c
HttpSessionAccept or calling setters.
The second is that @c HttpSessionAccept is not provided with any thread
safety because it is intended as an immutable object. Putting
the setters here and not there makes that clearer.
We don't do this directly as nested class because we want to
inherit the data members rather than duplicate the declarations
and initializations.
*/
class HttpSessionAcceptOptions
{
private:
typedef HttpSessionAcceptOptions self; ///< Self reference type.
public:
HttpSessionAcceptOptions();
// Connection type (HttpProxyPort::TransportType)
int transport_type = 0;
/// Set the transport type.
self &setTransportType(int);
/// Local address to bind for outbound connections.
IpAddr outbound_ip4;
/// Local address to bind for outbound connections.
IpAddr outbound_ip6;
/// Set the outbound IP address to @a ip.
self &setOutboundIp(IpAddr &ip);
/// Set the outbound IP address to @a ip.
self &setOutboundIp(IpEndpoint *ip);
/// Local port for outbound connection.
uint16_t outbound_port = 0;
/// Set outbound port.
self &setOutboundPort(uint16_t);
/// Outbound transparent.
bool f_outbound_transparent = false;
/// Set outbound transparency.
self &setOutboundTransparent(bool);
/// Transparent pass-through.
bool f_transparent_passthrough = false;
/// Set transparent passthrough.
self &setTransparentPassthrough(bool);
/// Host address resolution preference order.
HostResPreferenceOrder host_res_preference;
/// Set the host query preference.
self &setHostResPreference(HostResPreferenceOrder const &);
/// Acceptable session protocols.
SessionProtocolSet session_protocol_preference;
/// Set the session protocol preference.
self &setSessionProtocolPreference(SessionProtocolSet const &);
};
inline HttpSessionAcceptOptions::HttpSessionAcceptOptions()
{
host_res_preference = host_res_default_preference_order;
}
inline HttpSessionAcceptOptions &
HttpSessionAcceptOptions::setTransportType(int type)
{
transport_type = type;
return *this;
}
inline HttpSessionAcceptOptions &
HttpSessionAcceptOptions::setOutboundIp(IpAddr &ip)
{
if (ip.isIp4())
outbound_ip4 = ip;
else if (ip.isIp6())
outbound_ip6 = ip;
return *this;
}
inline HttpSessionAcceptOptions &
HttpSessionAcceptOptions::setOutboundIp(IpEndpoint *ip)
{
if (ip->isIp4())
outbound_ip4 = *ip;
else if (ip->isIp6())
outbound_ip6 = *ip;
return *this;
}
inline HttpSessionAcceptOptions &
HttpSessionAcceptOptions::setOutboundPort(uint16_t port)
{
outbound_port = port;
return *this;
}
inline HttpSessionAcceptOptions &
HttpSessionAcceptOptions::setOutboundTransparent(bool flag)
{
f_outbound_transparent = flag;
return *this;
}
inline HttpSessionAcceptOptions &
HttpSessionAcceptOptions::setTransparentPassthrough(bool flag)
{
f_transparent_passthrough = flag;
return *this;
}
inline HttpSessionAcceptOptions &
HttpSessionAcceptOptions::setHostResPreference(HostResPreferenceOrder const &order)
{
host_res_preference = order;
return *this;
}
inline HttpSessionAcceptOptions &
HttpSessionAcceptOptions::setSessionProtocolPreference(SessionProtocolSet const &sp_set)
{
session_protocol_preference = sp_set;
return *this;
}
} // namespace detail
/**
The continuation mutex is NULL to allow parellel accepts in NT. No
state is recorded by the handler and values are required to be set
during construction via the @c Options struct and never changed. So
a NULL mutex is safe.
Most of the state is simply passed on to the @c ClientSession after
an accept. It is done here because this is the least bad pathway
from the top level configuration to the HTTP session.
*/
class HttpSessionAccept : public SessionAccept, private detail::HttpSessionAcceptOptions
{
private:
typedef HttpSessionAccept self; ///< Self reference type.
public:
/** Construction options.
Provide an easier to remember typedef for clients.
*/
typedef detail::HttpSessionAcceptOptions Options;
/** Default constructor.
@internal We don't use a static default options object because of
initialization order issues. It is important to pick up data that is read
from the config file and a static is initialized long before that point.
*/
HttpSessionAccept(Options const &opt = Options()) : SessionAccept(nullptr), detail::HttpSessionAcceptOptions(opt) // copy these.
{
SET_HANDLER(&HttpSessionAccept::mainEvent);
return;
}
~HttpSessionAccept() override { return; }
bool accept(NetVConnection *, MIOBuffer *, IOBufferReader *) override;
int mainEvent(int event, void *netvc) override;
// noncopyable
HttpSessionAccept(const HttpSessionAccept &) = delete;
HttpSessionAccept &operator=(const HttpSessionAccept &) = delete;
};
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